Maturing Australian spinner Nathan Lyon says he is not bothered by personal milestones and his focus remains on helping Australia to a 5-0 whitewash over England in the final Ashes Test in Sydney.

Lyon, who started the season with his position in the Australian side questioned by many, has taken 16 wickets for the series including his 100th Test victim in Australia's Melbourne Test win on the weekend.

Arriving in Sydney ahead of the final Ashes Test, Lyon, 26, said he enjoyed claiming his 100th wicket for Australia but is happy to remain out of the limelight.

"It's always nice to contribute to an Australian victory but I'm more concerned for the team performance," Lyon said.

"I'd rather go unnoticed, so I'm happy for Mitchell Johnson to take all (the attention)."

Lyon grabbed his share of the attention when he claimed his first five-wicket haul in Australia during his team's victory in the Boxing Day Test.

Keeping his spot in the team is no longer a concern for Lyon who has become a key part of the Australian bowling attack.

"I've felt that for a while now," Lyon said.

"I'm pretty confident in my own skill set to get the job done.

"So I was lucky enough to get a little bit of a reward this game, but we're bowling really well as a bowling unit right now and the whole team is working really well together.